_ A. W. WATERS—REPORT ON THE BRYOZOA. 123 
Reports on the Marine Brotoaey of the SupANESE Rep §Sza, from Col- 
lections made by Oyrin CrossLanD, M.A., B.Se., F.ZS. ; together 
with Collections made in the Red Sea by Dr. R. Hartmzyer.— 
XII. The Bryozoa. By Arraur Wm. Waters, F.L.S. 
Part I.—CHEILOSTOMATA. 
(PLATES 10-18.) 
[Read 18th June, 1908.] 
Tuts collection has to be considered from more than one standpoint, and 
after the general one of learning more about the Fauna of the Red Sea 
we naturally turn to any work already done and recognise how much the 
usefulness of the splendid plates prepared by Savigny will be increased when 
the fauna of the Red Sea has been adequately compared. After the failure 
of Savigny’s health, names were given by Audouin to the figures drawn by 
Savigny, but no description has been published ; however, many of the 
figures have been recognised as species occurring from other localities, but 
concerning some there has been uncertainty. According to enquiries made 
in Paris none of Savigny’s collection is now in existence. 
The collection made by Mr. Crossland by no means fully represents the 
fauna, for of this there can be no doubt when such genera as Retepora, 
Cellaria, Flustra, Hornera, Aleyonidium, Cribrilina, &c. are unrepresented. 
The Berlin Kgl. Zoologisches Museum kindly lent me a collection from 
the Red Sea, made by Dr. R. Hartmeyer, together with a few species 
collected by Messrs. Liffler and Siemens, and forms not found in the 
Crossland collection are described at the end of this communication ; also 
a list of other species now known from the Red Sea is given on page 128. 
Next comes the question of the distribution of Red Sea and other tropical 
faunas, which have so far not received as much attention as those of 
temperate and Arctic faunas, for until recently it was considered that the 
tropical Bryozoa fauna was very meagre. Having also had intrusted to 
me Mr. Crossland’s large and important collections from Zanzibar, as well as 
one made by him off Cape Verde Islands, I am considering the series as 
practically a study of all known tropical forms *. 
Some recent papers, among others those of Kirkpatrick, Philipps, and 
Thornely, have prepared us for finding a very wide geographical distribution 
of tropical forms; but notwithstanding this, after looking through practically 
all the British Museum specimens, which now include Busk’s and Hincks’s 
collections, examining my own collections and those upon which I am at work, 
there is constantly a feeling of surprise when finding species from such wide 
* At present, besides the collections mentioned, the ‘Siboga’ and Stanley Gardiner 
‘Sealark’ collections are in the hands of specialists, and therefore a knowledge of the Red 
Sea fauna, connecting the Atlantic and East, is of great importance. 
LINN. JOURN.—ZOOLOGY, VOL. XXXI. 10) 
